Home / 1,335,042.96-1,999,064.88-915,138.96

Finding the Fourth Proportional to 1,335,042.96, 1,999,064.88 and 915,138.96

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Solution

The fourth proportional to 1,335,042.96, 1,999,064.88 and 915,138.96 is: 1,370,309.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335,042.96 : 1,999,064.88 = 915,138.96 : x
  2. Step 2: Convert to fraction form
    1,335,042.96/1,999,064.88 = 915,138.96/x
  3. Step 3: Cross multiply
    1,335,042.96x = 1,999,064.88 × 915,138.96
  4. Step 4: Simplify right side
    1,335,042.96x = 1,829,422,155,255.72
  5. Step 5: Solve for x
    x = 1,829,422,155,255.72/1,335,042.96
  6. Step 6: Final answer
    x = 1,370,309.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.